The Beru Ignition Tune-Up Kit - 135173 is a comprehensive set of products designed to improve the performance and functionality of a car's ignition system. It includes three essential components: spark plugs, ignition wires, and a distributor cap. These parts work together to provide a strong and consistent spark, which is crucial for starting the engine and maintaining smooth operation. The kit does not specify the brand names of the contents, but rather focuses on the type of products included. This allows for flexibility in compatibility with various car models. With this kit, car owners can easily replace old or worn out ignition components and ensure optimal performance and efficiency of their vehicle.